jest.config.ts

/*
 * For a detailed explanation regarding each configuration property, visit:
 * https://jestjs.io/docs/configuration
 */

export default {
  // Automatically clear mock calls, instances, contexts and results before every test
  clearMocks: true,
  // Indicates whether the coverage information should be collected while executing the test
  collectCoverage: true,
  collectCoverageFrom: [
    '<rootDir>/src/**/*.ts',
    '!<rootDir>/src/**/index.ts',
    '!<rootDir>/src/**/package.ts',
    '<rootDir>/postbuild/postbuild.mjs',
  ],
  // The directory where Jest should output its coverage files
  coverageDirectory: 'coverage',
  // Indicates which provider should be used to instrument code for coverage
  coverageProvider: 'v8',
  coverageThreshold: {
    global: {
      branches: 100,
      functions: 100,
      lines: 100,
      statements: 100,
    },
  },
  extensionsToTreatAsEsm: ['.ts'],
  moduleFileExtensions: ['ts', 'js', 'mjs', 'json'],
  testEnvironment: 'node',
  testMatch: ['**/test/**/*.test.ts'], // The glob patterns Jest uses to detect test files
  transform: {
    '^.+\\.m?[tj]sx?$': [
      'ts-jest',
      {
        tsconfig: {
          target: 'es2022',
          module: 'es2022',
        },
      },
    ],
  },
  transformIgnorePatterns: [
    '/node_modules/(?!chalk|escape-string-regexp|figures|inquirer|is-unicode-supported/)',
  ],
  verbose: true,
};